4 points
I played 3 and NV on 360, both games were badly marred by being as much loading zone as they were game. Ruined the experience of snooping around for loot and side quests as opening a door back into the wasteland could take minutes. I had to stick to mostly the main quest.
4 was a far better “game” for being played on PC, but I agree NV plot was great. I just didn’t want to replay and get the different endings, as the game itself was painful to play.
I should replay them on PC someday, especially if there are graphical update mods available.